Connect Vertex Path(頂点の経路を連結)

参照

Mode(モード):

Edit Mode(編集モード)

Menu(メニュー):

Vertex(頂点) ‣ Connect Vertex Path(頂点の経路を連結)

ショートカットキー:

J

Creates edges between vertices in the order they are selected, splitting faces along the way. Running the operator a second time closes the loop.

実施前。

First execution.

Second execution.

It's also possible to create a path of edges along vertices that are isolated (not part of any edges or faces).

参考

The Knife Topology Tool offers a more interactive way of splitting faces. Unlike Connect Vertex Path, however, it makes cuts that are perfectly straight as seen from the current viewpoint.